On-Premise Phone Systems - Full Control, No Cloud Dependency
Some businesses need their phone system to keep running even if the internet has a bad day, or need call data to stay on-site for compliance reasons. Byteway installs and maintains on-premise PBX systems built for exactly that.
- No lock-in contracts
- Australian-based support
- Transparent pricing
- Melbourne team
Why Some Melbourne Businesses Still Choose On-Premise PBX?
An on-premise phone system is a PBX unit installed and hosted at your business location, rather than run from a provider’s cloud infrastructure. You own the hardware, and your call routing, voicemail and data stay on-site.
Australia’s copper PSTN network has now been fully decommissioned, and Telstra has retired the legacy ISDN and bundled voice products that many older on-premise systems relied on. That doesn’t mean on-premise is dead. It means an on-premise PBX today connects over SIP trunking through your internet connection instead of a physical phone line. For businesses with strict data residency requirements, unreliable internet in the past, or a large call centre already invested in on-site hardware, on-premise still makes sense. It just needs to be set up correctly for how phone networks actually work now.
What Byteway's On-Premise
Phone Service Covers?
Installation, SIP trunking, and ongoing maintenance, all handled by a team that understands the PSTN shutdown isn’t optional to plan around.
PBX Installation and Configuration
- On-site installation and setup
- Call routing and voicemail configured to your workflow
- Scales with additional handsets as you grow
SIP Trunking Migration
- PSTN/ISDN replacement handled properly
- Sized against your internet connection's capacity
- Tested before go-live, not after
Ongoing Maintenance and Support
- Proactive hardware monitoring
- Local technician callouts
- Firmware and security patching
Why Byteway, Not Just Another
PBX Installer
Plenty of installers can rack a PBX box. Fewer understand that the network it plugs into has fundamentally changed in the past two years.
Local team
Australian-Based Support
Complete stack
IT + Telco Under One Roof
Transparent
Clear Pricing, No Surprises
Proactive
We Catch Problems Before You Notice
Serving Melbourne
Businesses Across
Every Sector
On-Premise PBX With Byteway vs a Generic Installer
| Feature / Outcome | Byteway | Traditional Provider | Other Provider |
|---|---|---|---|
| Correctly configured for post-PSTN network | ✓ | Varies | ✗ |
| Australian-based hardware support | ✓ | Varies | ✗ |
| Bundled with internet and IT support | ✓ | ✗ | ✗ |
| Proactive monitoring | ✓ | ✗ | ✗ |
| Transparent, itemised pricing | ✓ | Varies | N/A |
| No lock-in contract | ✓ | Varies | N/A |
Getting Started With On-Premise Phone Systems Is Simple
All the best team Byteway
Janine
All of the mobile phones & plans in our family business have been handled by byteway for the past few years now.
Vivan has only ever been promt, informative, and extremely willing to help.
Customer service like this is hard to find these days. Would highly recommend these guys!
From the moment I reached out for assistance, they were responsive, professional, and incredibly helpful. The team went above and beyond to address my needs and provide a solution that exceeded my expectations.
The quality of their work is exceptional, and the results speak for themselves. I was thoroughly impressed with their attention to detail and commitment to customer satisfaction.
I highly recommend Byteway to anyone seeking top-notch service. They are reliable, trustworthy, and truly dedicated to their customers. Thank you for your excellent service!
Trusted by Australian Businesses
Frequently Asked Questions About On- Premise Phone Systems
Is on-premise still viable now that PSTN has been shut down in Australia?
Yes. On-premise PBX systems now connect through SIP trunking over your internet connection instead of a copper PSTN line. The hardware and control stay on-site, but the underlying connection method has changed, and it needs to be configured for that.
How much does an on-premise phone system cost?
Cost depends on the number of handsets, call volume, and whether existing hardware can be reused. Byteway provides a fixed quote after assessing your current setup.
What happened to my old phone system if it used ISDN or PSTN lines?
If your system relied on ISDN or a direct PSTN line, that connection method no longer exists. The system either needs to be migrated to SIP trunking or replaced. Byteway can assess whether your existing hardware is worth migrating or whether a new system makes more sense.
Why choose on-premise over hosted PBX?
On-premise makes sense if you have strict data residency requirements, a large call centre already invested in on-site hardware, or a preference for owning the equipment outright. For most other businesses, hosted PBX is simpler and cheaper. See our Hosted PBX / Cloud VoIP page for the full comparison.
Do I need a long-term contract for Byteway's on-premise service?
No. Byteway service arrangements are flexible and month-to-month, even for hardware-based systems.
How quickly can Byteway respond if our on-premise system fails?
Hardware faults are treated as urgent given the operational impact of losing phones entirely. Byteway's local Melbourne team prioritises same-day response for critical outages.
Not Sure If Your Phone System Survived the PSTN Shutdown? Talk to Our Team
- Free audit
- No obligation
- Quote within 48 hours
- Australian-based team